used by rapper esoteric, in the song herb. pronounced like its spelled, no silent h. it doesnt mean weed or drugs, its a term for someone who follows trends, or just is a complete bullshitter. basicly one of those kind of people that nobody likes.

'yo you a herb, if you say you rhyme off the mind
but your hype mans backin up every single line'

'you a herb, if you steal out the tip-cup
if you still wear a hat with the visor flipped up'

Insult synonomous with loser but can have multiple negative connotations. Pronounced "HURB" with no silent 'h.'The term was popularized in upstate New York and spread from there.
The word herb has nothing to do with marijuana.

Guy 1: Yo, I saw Melvin in the bathroom crying because he got a 93 on the math test!

1. (noun) Nerd; dork; geek; generally uncool person. Originated in early 1980s Burger King ad campaign in which a nerd named HERB was featured. The term was subsequently embraced by the hip hop generation.

Someone who tries more than anything to be cool, to the point of ironic backfire, because the person gets annoying, achieving a reputation for getting in the way and pretending to know everything but with an extreme lack of merit. As a result, trying so hard to be cool has the opposite effect, and one becomes a "herb" herb.

(in new york accent) "kevin yo' such a herb, yo' goin' to xavier, one uh da best private schools in da city and yo' failin' spanish.